TRIDYMITE
Specimen trd-1
$ 45.00Dims: 2.5 x 2.5 x 1.2" (6.4 x 6.4 x 3.0 cm)
Wt: 2.91 oz. (82.6 g)
Vechec, East Slovakia, Slanske Vrchy Mountains, Slovak Republic
This extremely unusual specimen boasts several thin Tridymite blades that rest on a gray, rust-stained base. These crystals do not exceed 0.1" (3 mm) in diameter but are in excellent condition and show excellent monoclinic form, in the form of pseudohexagonal blades. All are white, translucent and have a pearly-to-vitreous luster. They are accompanied by a few rounded and indistinct cristobalite nodules that have a milkier white color and a dull luster.